Small Integrated DTH Surface Drilling Rig for Quarry Zhejiang Zhongnuo Intelligent Machinery Co., Ltd. Base Info Description Model NoZGYX-421THole Depth20mDrill Pipe SizeΦ60*3000mmHole DiameterΦ80-115mmDTH Hammer3.5"Rotation Torque1650N.mWorking Pressure14.5BarF.A.D12m3/minTramming Speed2/3 Km/hGradient30°Track Frame Oscilation±10°Total Weight6800kgTransportation Dimensions6000*2800*2750mmDry Dust CollectorStandardDual Speed Walking MotorStandard Pre：200m Top Drive Water Well Drilling Rig Next：High Quanlity Portable Mining Crawler Mounted Drilling Rig
